Music-sheet driver for automatic players.



P. W. DRAPER.

MUSIC SHEET DRIVER FOR AUTOMATIC PLAYERS.

APPLICATION FILED AUG. 8,-1912.

1,083,600, Patented Jan. 6, 1914.

M New (l Momma COLUMBIA PLANHGRAFH COHWASHINGTON. D. :4

UNITED STATES PATENT OFFICE.

FRANCIS W. DRAPER, 0F RICHMOND, INDIANA, ASSIGNOR TO THE STARR PIANO COMPANY, OF RICHMOND, INDIANA, A CORPORATION OF INDIANA.

MUSIC-SHEET DRIVER FOR AUTOMATIC PLAYERS.

To all whom it may concern.-

Be it known that I, FRANCIS W. DRAPER, a citizen of the United States, residing at Richmond, in the county of WVayne and State of Indiana, have invented a new and useful Music-Sheet Driver for Automatic Players, of which the following is a specification.

The object of my invention is to produce an apparatus by means of which the sheet carrying mandrels of a music sheet driving mechanism of an automatic musical instrument may be easily and accurately adjusted longitudinally of the tracker board in order to bring the perforations of the music sheet into proper alinement with the perforations of the tracker board.

The accompanying drawings illustrate my invention.

Figure 1 is a front elevation and Fig. 2 an under plan.

In the drawings, 10 indicates the main frame or box within which the tracker board 11 is arranged. Arranged parallel with tracker board 11 are the mandrels 12, 12 for the reception of the winding roll 13 and also arranged parallel with the tracker board 11 are the mandrels 14, 14 for the reception of the sheet storage roll 15. The mandrels 12 and 141 are carried by vertical plates 16, 16 of sufficient rigidity to maintain the same in proper parallelism and alinement and these two plates 16, 16 are connected top and bottom by rods 17, 17. One of the plates 16 also carries studs 18 which in turn support a plate 19 for the reception and support of the usual forward-and-reversing driving train 20, the arrangement being such that the two sets of mandrels are substantially associated with each other by means of a frame formed with the plates 16, 16 and rods 17. The driving train illustrated comprises the shaft 30 carrying a loose sprocket wheel 31 connected by a chain 32 to the upper driving mandrel 1 1, and a clutch member 33 slidable along but rotatable with the shaft 30 to clutch the sprocket wheel 31 to such shaft or unclutch it therefrom and to move the pinion 34: into and out of mesh with the gear 35 connected to the lower driving mandrel 12. The rods 17, 17 are supported in suitable guides 24, 24 in or carried upon frame 10 and in order to adjust the mandrels axially, and thus parallel with the tracker board 11, I pivot, at 21 upon the under side Specification of Letters Patent.

Application filed August 8, 1912.

Patented Jan. 6, 1914.

Serial No. 713,963.

of the bottom board of frame 10, a controlling lever 22 which is projected up through the bottom board in front of roller 13 at a point convenient to access. Lover 21 is connected by a link 23 with the lower rod 17 so that a rocking of lever 22 will shift the frame 1617 and associated parts.

I claim as my invention:

1. In a music sheet driving mechanism, the combination with the tracker board and its support, of a pair of spaced plates each of which carries two mandrels arranged parallel with the tracker board, the said mandrels carried by the two plates being in alined pairs, connecting rods connecting the plates at their upper and lower ends so as to form a mandrel carrying frame, guides within which said connecting rods may reciprocate relatively to the tracker board, a main driving shaft supported in bearings carried by said mandrel carrying frame, forwarding gearing connecting the main driving shaft and one of the mandrels, said forwarding gearing also being supported by the mandrel carryingframe, reversing gearing connecting the main driving shaft and another of said mandrels, said reversing gearing also being supported by said mandrel carrying frame, and means for establishing either forwarding or reversing connection between the main shaft and the mandrels, and means for shifting the mandrel carrying frame bodily parallel with and relatively to the tracker board, said means comprising a lever pivoted upon the tracker board support and a link connecting said lever with the mandrel carrying frame.

2. In a music sheet driving mechanism, the combination with the tracker board and its support, of a pair of spaced plates each of which carries two mandrels arranged parallel with the tracker board, the said mandrels carried by the two plates being in alined pairs, connecting rods connecting the plates at their upper and lower ends so as to form a mandrel carrying frame, guides within which said connecting rods may reciprocate relatively to the tracker board, a main driving shaft supported in bearings carried by said mandrel carrying frame, forwarding gearing connecting the main driving shaft and one of the mandrels, said forwarding gearing also being supported by the mandrel carrying frame, reversing gearing connecting the main driving shaft and another of said mandrels, said reversing gearing also being supported by said mandrel carrying frame, and means for establishing either forwarding or reversing con nection between the main shaft and the mandrels, and means for shifting the mandrel carrying frame bodily parallel with and relatively to the tracker board.

3. In a music sheet driving mechanism the combination of a plate carrying two sub stantially parallel mandrels, a second plate also carrying two substantially parallel inandrels laterally spaced the same as the mandrels of the other plate, a third plate carried by the second plate and spaced therefrom, said third plate carrying bearings for the outer ends of the mandrels carried by the second plate, a main drive shaft journaled in and extending between the second and third plates, and coacting gearing carried by the main. drive shaft and the adjacent two mandrels for alternately establishing forwarding and reversing driving connection between the main drive shaft and the respective adjacent mandrels, and a pair of supporting guide rods connecting the first and second plates together and holding the same in spaced relationship.

In witness whereof, I have hereunto set my hand and seal at Richmond,Indiana,this third day of August, A. D. one thousand nine hundred and twelve.

FRANCIS V. DRAPER.

\Vitnesses ARNOLD E. Prnirrnn, lVALTER DEMING.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

